Acoustic panel density

[chych7]

That's a huge improvement for 4" panels. I don't understand your results they seem to defy what I've seen. Are the walls in the room paper thin? Or stuff with crazy insulation?

Nothing too unusual. Two walls are exterior walls with insulation. One wall is just typical drywall and hollow, with door. Other wall is plywood + drywall, no insulation.

 

[ozzy9832001]

Nothing too unusual. Two walls are exterior walls with insulation. One wall is just typical drywall and hollow, with door. Other wall is plywood + drywall, no insulation.

I guess it's not that crazy, it is 14 panels in the room. Just seems a huge change, especially on the under 125hz, where thicker traps are often required.